The American Institute of Architects

American Planning Association

American Public Transport Association

American Society of Civil Engineers

American Society of Landscape Architects

Andersen Corporation

Associated Builders and Contractors, Inc.

The Associated General Contractors of America

Deborah Berke & Partners Architects LLP   

Beyer Blinder Belle Architects & Planners LLP

BFC Partners

The Capital Group Companies

Clark Construction Group, LLC

James G. Davis Construction Corporation

Discovery Communications

FXFOWLE Architects

Gensler

Goldman, Sachs & Co.

Hanley Wood

Holland & Knight

The Home Depot Foundation

International Masonry Institute

International Union of Bricklayers & Allied Craftworkers

The JBG Companies

Knoll, Inc.

Kohn Pedersen Fox Associates PC

Lafarge

MASCO Corporation

McGraw-Hill Construction

National Association of Home Builders

National Parking Association

Patton Boggs LLC

Perkins + Will

David M. Schwarz Architects

Robert A. M. Stern Architects LLP

Skidmore, Owings & Merrill LLP

STUDIOS Architecture

The Tower Companies

Turner Construction Company

U.S. Conference of Mayors

U.S. Green Building Council

United Technologies Corporation

Wight & Company

*Current as of June 24, 2009